<!DOCTYPE html>
<html>
<head>
    <title>在对应的框中输入信息查询结果</title>
    <style>
        .select {
            top: 0;
            width: 100%;
            background-color: #F8F9FA;
        }

        .content {
            top: 50px;
            overflow: hidden;
            width: 100%;
            height: 100vh;
        }

        iframe {
            overflow: hidden;
            width: 100%;
            height: 100%;
            border: 0;
        }
         /*input {*/
         /*    display: none; !* 或者使用 visibility: hidden; type="hidden"  *!*/
         /*}*/

    </style>
</head>

<body>
    <div class="select">
        <form action="selectevery2.php" method="post" target="dd3">
            <label for="search_room">机房:</label>
            <input type="text" id="search_room" name="search_room" value="%">
            <label for="search_cabinet">机柜:</label>
            <input type="text" id="search_cabinet" name="search_cabinet" value="%">
            <label for="search_belongen">归属部门:</label>
            <input type="text" id="search_belongen" name="search_belongen" value="%">
            <label for="search_belongop">归属部门:</label>
            <input type="text" id="search_belongop" name="search_belongop" value="%">
            <button type="submit">确定</button>
        </form>
    </div>
    <div class="content">
        <iframe class="content-3" name="dd3"></iframe
    </div>
</body>
</html>